Separator-bowl.



G. WEBSTER. SEPARATOR BOWL, APPLICATION FILED MAY 29, 1908.

Patented Felo.` 23, 1909.

Wig'. J. P

wihwaoeo anonimi( UNITED STAFF@ PATENT FFlCE.

GEORGE WEBSTER, OF GHRISTI NA, lil'lNNSYLVAN IA..

SEPARATOR-BOWL.

AApplication filed May 29, 1908.

To all whom it may concern.'

Be it known that l, Gaone?. Wirns'rnn, citizen oi' the United States, residing at Christiana, in the county ol Lancasie: and State ol' Pennsylvania, have invented certain new and useful lmprovements in Separatv 7, Bowls, of which the lollowing is a specification.

The present invention reates to improve- 'l0 which embody a rotary bowl and utilize cen- 'trilugal force lor separating the cream from the milk.

rThe object of the invention is the provision ol' a separator ol' this character which embodies few and simple part-s and wiLl operate in an eilective manner to separate the globules ol' cream from the remainder ol the milk.

The invention further contemplates a con struction in which the parts are `formed and arranged in such a manner that they can be readily dismounted and cleaned with a comparatively small amount oi labor.

For a Vl'ull understanding ol the invention and the merits thereol` and also to acquire a knowledge oi the details ol' construction and the means Vfor effecting the result, reference is to be had to the Vl'ollowing description and. accompanying drawings, in which:

Figure 1 is a perspective view ol' a complete cream separator showing one manner ol' mounting a separator bowl provided with a tubular plug embodying the invention. Fig. 2 is an enlarged detail view ol' the bowl, portions being broken away and shown in section. Fig. 3 is a detail perspective view olI the tubular plug at the upper end ol the bowl. Fig. 4 is a transverse sectional view on the line vs -x of Fig. 2. Fig. 5 is a detail view ol the cream plate.

Corresponding and like parts are rel'errcd to in the Vfollowing description and indicated in all the views ol' the drawings by the same reference characters.

Referring to the drawing, the numeral l designates the bowl oll a centrifugal separator` which is designed to be mounted so as to revolve about a vertical axis, the milk being led to the bowl at the lower end thereol' and the cream being separated therefrom as it rises within the bowl. Any suitable means such as that employed in the usual 'forms oi cream separators may be employed l'or leeding the milk to the lower end oll the bowl and causing it to rise therein. The upper end of ments in cream separators ol' that type.

Specification of Letters Patent.

l i l l l l l l i l, l

-atented Feb. 23, 1909.

Serial le. 435.766.

the bowl l is contracted at 2 and then tapered at Il, the tapered portion having a di ameter sinnewhat smaller than that ol' the bowl. liilted within this tapered portieri 3 is a tubular plug l the upper end olI which pro `octs beyond the bowl and is threaded 'lor en;` rement with a shalt by means ol which the bowl is rotated. The lower end ol the tubular plug is Vllarod outwardly at -l@ and is designed to have a wedge eng ement with the tapered portion il olI the bon l. The plug inserted in position lfrem the bottom ol the bowl and the l'riclional engagement between the flared end ol the plug and the tapered portion 1% ol the bowl serves to lock the two members Vlirmly together. However, when it is desired to dismount the parts `l'or cleaning the same the plug can be readily l'orced downwardly out el position. The lower ex tremity ol' the tubular plug serves a dividing wall to separate the cream 'from the milk, the milk passing npon the exterior ol' the plug while the cream passes through the interior thereof.

As the milk rises within the bowl and the latter is rapidly rotated the action ol' centrifugal l'orce will torce the skimmed milk outward against the wall ol the bowl while the cream will rise upward along the inner side ol' the skimmed milk. At the upper end oll the bowl the skimmed milk will pass upon the exterior ol the plug l while the cream will pass through the interior ol' the plug. The lower end ol the plug is provided upon its exterior with an annular groove or depression 5 which receives the skimmed milk which has been separated l'rom the cream and communicating with this groove are the longitudinal channels which lead the skimmed milk to the upper end ol the tapered portion 3 ol` the bowl where it is discharged.

A pair el cream vents 7 are `formed in the plug 4 above the separatorbowl and immediately below these vents is a downwardly facing shoulder 8. Fitting removably against this shoulder and held in position by a lrictional engagement with the walls el the tubular plug is a cream plate 9 provided with a central slot 9 and also with the two ooncentric slots 9b. This cream plate operates to dam back the cream and retard the ilow thereof so as to regulate the consistency oli' the cream.

Any suitable means may be utilized ior applying power to the shaft having the tubular plug connected thereto and when the bowl is rapidly rotated and milk caused to r flow upwardly therethrough, the cream and skimmed milk will be separated as heretofore described, the cream passing through the tubular plug and being discharged through the cream vents 7 therein while the skimmed l milk passes upon the exterior of the tubular l plug and is discharged through the longitudinal channels 6 therein. l/Vhen it is desired to clean the separator it is merely necessary to dismount the parts by forcing the tubular plug downwardly within the bowl and driving the cream plate through ,i the flared end of the plug. l

Having thus described the invention, what is claimed as new is:

l. In a cream separator, the combination of a bowl, means for rotating the bowl, means for feeding milk to the bowl at one end thereof, a tubular plug at the opposite end of the bowl for separating the milk from the cream, the milk passing upon the exterior of the tubular plug while the cream passes through the I same, the said plug being provided upon its r interior with an annular shoulder', and a perforated plate fitted removably within the plug and bearing against the shoulder, the i said cream plate serving to retard the flow of cream. l 2. in a cream separator, the combination of a bowl, means for rotating the bowl, means lfor rotating the bowl, and a tubular for feeding milk to the bowl at one end thereof, a tubular plug applied to the opposite end of the bowl, the inner edge of the tubular plug serving to divide the cream and skimmed milk, the former passing through the interior of the plug while the latter passes upon the exterior of the plug, the said exterior of the plug being provided toward the inner end of the plug with an annular groove to receive the skimmed milk and also with a longitudinal channel communicating with the annular groove.

3. In a cream separator, the combination of a bowl having one end thereof tapered, means for feeding milk to the bowl, means plug fitted within the tapered portion of the bowl and having a flared formation for frictionally engaging the same, the inner edge of the tubular plug serving to separate the cream from the skimmed milk and the plug being formed with a cream vent, the milk passing upon the exterior of the plug while the cream passes through the same.

In testimony whereof l aiX my signature in presence of two witnesses.

GEORGE WEBSTER. Wvitnesses J. A. Hannan, M. P. COOPER. 

